ASME B30.8-2020 pdf free
ASME B30.8-2020 pdf free.Floating Cranes and Floating Derricks Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings.|
foot bearing or block (sill block): the lower support on which the derrick mast rotates.
gantry (A-frame): a structural frame, extending above the superstructure, to which the boom support ropes are reeved.
gudgeon pin: a pin connecting the mast cap to a derrick mast allowing rotation of the mast.
guy, derrick: a rope used to steady or secure the mast or other member in the desired position.
hoist mechanism: a hoist drum and rope reeving system used for lifting and lowering loads.
hook, latch-type: a type ofhook with a mechanical device to close the throat opening of the hook
jib: an extension attached to the boom point to provide added boom length for lifting specified loads The jib may be in line with the boom or offset to various angles in the vertical plane of the boom.
land crane: a crane designed primarily for operation on land.
liquidfree surface: the unchecked movement ofa liquid in a tank or compartment. This results in a virtual rise In he vertical center of gravity of the barge or pontoon and is detrimental to transverse stability.
list: angle of inclination about longitudinal axis of barge or pontoon.
list, machine: the inclination of the transverse centerline of the base of the crane or derrick from the horizontal.
load, rated: the maximum allowable working load in pounds (kilograms) designated by the manufacturer in accordance with Section 8-1.1.
load, working: the external load In pounds (kilograms) applied to the crane or derrick including the weight of load-attaching equipment, such as load blocks, shackles, and slings.
load block lower: the assembly of hook or shackle, swivel, sheaves, pins, and frame suspended by the hoisting ropes.
load block, upper: the assembly of sheaves. pins, and frame attached to or suspended from the boom.ASME B30.8 pdf download.
